Sort:  

Honestly these places attract me like a magnet, I don't need to stay in a 5* hotel or go to Michelin star restaurants, for me these don't matter, but when I comes to places like the one you presented I melt.
I leave you a picture of a place I visited in Hungary, everything you see is under a city..

IMG_20211010_111042.jpg

Same here, I also prefer natural places to urban environment ;) The cave that you got to visit in Hungary looks amazing. You can even take a boat ride in there, wow, just like you can in that underground river in the Moravian Karst ;)

How mysterious the world is, to be able to have such amazing places around us.
The cave I showed you is a gallery under the city, where the bustle of the city passes by every day.

Mysterious and incredible indeed :) Thanks for sharing your experience with us! Greetings from Czechia to Romania!

I send you my best thoughts from here in Romania.